Wheel grip



Patented Mar. 13, 1923.

FRANK M. con, or NEW YORK, N. Y.

WHEEL GRIP.

Application filed June 20,

To all whom it may concern:

Be it known that I, F RANK M. Con, a citi- Zen of the United States, and residing at New York city, in the county of New York and State of New York, have invented a certain new and useful Improvement in Wheel Grips, of which the following is a specification.

The object of my invention is to provide vehicles, particularly tractors, with wheel grips, constructed and mounted so as to insure against slipping of the wheels, regard less of the character of the ground in which the tractor is working.

A further object is to provide means for quickly attaching or detaching the wheel grips, said means also functioning to securely seat and hold the grips in place.

A further object is to provide a securing means adapted to engage and hold in place a plurality of the grips, by a single operation of tightening and clamping.

Other and particular objects will be obvious, to a person skilled in the art, by a careful reading of the specification and reference to the drawings.

My invention consists of certain details of construction hereinafter set forth, pointed out in my claims and illustrated in the accompanying drawings in which- Fig. 1 is a side elevation of my improved wheel equipped with my improved lugs.

Fig. 2 is an end elevation of the same partly broken away to show the interior construction.

Fig. 3 is a side elevation of the-latticed form of wheel.

Fig. 4 is an end elevation of the wheel as shown in Fig. 3.

Figs. 5, 6 and 7 are enlarged detail views of the grips, Figure 6 showing the formation of one of the grips used for the center of the periphery of the wheel.

Fig. 8 is a sectional view taken on the line 8-8 in Fig. 6.

Fig. 9 is a detail view of the securing ring.

Referring to the accompanying drawing the reference numeral 10 is used to indicate one of the drive wheels of a tractor, orificed at 11 in its periphery as shown. These orifices are uniform and evenly spaced and arranged preferably near the sides of the periphery, and are adapted to receive lugs, or grips, 12 which are formed with a clepending shank 13 on which is a hook let, a shoulder 15 being provided to form a mem- 1922. Serial No. 569,685.

her to seat within the orifice, the base of the lug being seated against the periphery of the wheel. Obviously the lugs, or grips, taper toward their outer ends to provide for them biting is rotated.

As before stated each of these grips have ahook formed at the lower end of their depending shanks and the base of the grips rests flush against the outer surface of the wheel, the depending member-of the grip, formed by the shoulder, being seated in the orifice, the shankwith its hook projecting downwardly. A metal band (preferably round in conformation) 16, screw threaded on both of its ends, circles the lugs and is seated in a hook on each lug, the ends'of the rod engaging screw threads in the two ends of a oining member 17.

When the grips, or lugs, have been seated in their respective orifices the encircling (or tightening) band isseated in the hooks (as clearly shown in Fig. 1) and the joining member 17 rotated. This draws the ends of the rod 16 together, thus obviously drawmg the lugs to a firm position in their respective seats.

In practical demonstrations I have been able to attach or detach, the grips to the wheels in an incredibly short space of time.

A large portion of traction wheels are of into the ground as the wheel what is known as the skeleton, or latticed type which are formed of annular rims spaced apart and held in relative position by spanning, or bridging, members, and it is for such wheels that my improved grips are particularly designed. As will be noted in the drawings 1 providechannels 18in the base of my grips, to receive the lattice members forming the wheel and in this manner the grip is firmly seated in position and held in place by the securing means. The grips thus formed may be attached to or sides of a latticed wheel.

Many minor changes may be made in the technical construction of the grips without in any manner effecting their functioning or the functioning of the securing band, and I do not therefore desire to be understood as limiting the scope of my protection except as outlined in the accompanying claims.

Having thus described my invention what I claim and desire to secure by Letters Patent of the United States is:

1. Grips for tractor wheels comprising lugs channelled to fit over the latticed rim the center (warn 5 inp; saidhand, substantially as shown and described.

2. A plurality of gripping devices for tractor Wheels each comprising a lug; channeled to engage and overlap portions of the latticed members forming the rim of the 10 Wheels, said lugs being designed to collectively function and certain groups of them being held in place ,by common securing means.

In testimony whereof, I have signed the 15 foregolng specificatlon.

FRANK M. COE. 

